电动汽车电池组均衡控制电路设计  

Circuit design for Balance and Control of Battery Panels on Electric Vehicles

作　　者：罗双 邢丽坤[1] LUO Shuang;XING Likun(Anhui University of Science & Technology, School of Electrical and Information Engineering, Anhui Huainan, 232001, China)

机构地区：[1]安徽理工大学电气与信息工程学院,安徽淮南232001

出　　处：《数码设计》2018年第4期187-189,共3页Peak Data Science

摘　　要：针对电动汽车多个单体锂电池组在使用过程中电池性能差异,造成的放电效率低以及电池寿命减少等问题,设计了一种基于Buck-Boost能量转移的非耗散型均衡电路。此方案是将电池间多余的电量,通过储能电感将能量转移给低电压电池,实现对电池组的均衡控制,并在电路中添加电容以及线圈构成了消磁电路,对电感中多余的磁通量进行消磁,提高了均衡电路工作效率。在MATLAB的Simulink中搭建仿真模型,仿真结果表明该方法均衡时间短、效率高,达到了电池组均衡目的。The battery performance of multiple single lithium battery packs in electric vehicles is different, which causes low discharge efficiency and shorter battery life etc. therefore, this thesis designed a non dissipative equilibrium circuit based on buck-boost energy transfer. The solution is to transfer the excess power from the battery to a low-voltage battery through the energy storage inductance, so as to achieve balanced control of the battery pack. In addition, it added the capacitance and coil in the circuit to make up a degaussing circuit, the superfluous flux in the inductance was demagnetized and equalization circuit efficiency was improved. The simulation model was built in Simulink of MATLAB, simulation results showed that the method was timesaving and efficient, successfully achieved the balance of battery pack.

关 键 词：均衡电路 消磁电路 储能电感 BUCK-BOOST 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]